Hybridization in Gulf of Maine River Herring

River herring (Alosa aestivalis and A. pseudoharengus) are semelparous anadromous fish that spawn in rivers from Florida to the Gulf of St Lawrence. They are important to local ecosystems because their movements transport nutrients that support riparian ecosystems. Further, they act as key prey species that support Atlantic cod and salmon fisheries, threatened and endangered respectively. Locally, they are culturally significant to native americans as well as fishing town that celebrate their annual return.  Research into river herring consequently is both economically as well as culturally driven.

This project aimed to improve the management of river herring in the Gulf of Maine by investigating the effects that hybridization may have on local population structure to inform management throughout the range. The manuscript is in review.


Photos from the field:



Thank you to the fantastic Lichter Lab! The project would not have been possible without you.


[Also thank you Patrick for the photos]